Home / 154,220.40-231,330.60-130,600.80

Finding the Fourth Proportional to 154,220.40, 231,330.60 and 130,600.80

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Solution

The fourth proportional to 154,220.40, 231,330.60 and 130,600.80 is: 195,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.40 : 231,330.60 = 130,600.80 : x
  2. Step 2: Convert to fraction form
    154,220.40/231,330.60 = 130,600.80/x
  3. Step 3: Cross multiply
    154,220.40x = 231,330.60 × 130,600.80
  4. Step 4: Simplify right side
    154,220.40x = 30,211,961,424.48
  5. Step 5: Solve for x
    x = 30,211,961,424.48/154,220.40
  6. Step 6: Final answer
    x = 195,901.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.